2 · Nature
25 · earth, world as celestial body
25F · animals
25F7 · lower animals
25F72 · molluscs
25F72(...) · molluscs (with NAME)
25F72(MUSSEL) · molluscs: mussel
25F72(MUSSEL)(+5) · molluscs: mussel (+ animal(s) in motion; positions, expressions of animals)
25F72(MUSSEL)(+51) · molluscs: mussel (+ fighting animals; aggressive relations)
25F72(MUSSEL)(+512) · molluscs: mussel (+ animal(s) attacking)